*{
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}
a{
    text-decoration: none;
    color: #999;
}
li {
    list-style: none;
}
body{
    background-color: #f8f8f8;
    font-family: "-apple-system",  'MIcrosoft YaHei', sans-serif !important;
}
.w {
    width: 1190px;
    margin: 0 auto;
}